July 18, 2014, 9:47PM

Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:47PM

The Infamous Stringdusters perform. Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:47PM

Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:47PM

The Infamous Stringdusters perform. Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:47PM

Paul Hoffman and Jay Anderson perform. Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:38PM

Paul Hoffman and Jay Anderson perform. Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:38PM

Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:38PM

Conscious Alliance travels from music festival to music festival to collect food for the hungry in return for concert artwork. Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday....

July 18, 2014, 9:37PM

Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:37PM

Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:31PM

Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:31PM

Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:31PM

The Sam Bush Band plays at the String Summit. Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:31PM

Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 9:31PM

Bluegrass music turned the picturesque setting of Horning's Hideout, outside of North Plains, into a dance party on Friday evening. The 13th annual Northwest String Summit, headlined by Yonder Mountain String Band, began on Thursday and will run until Sunday. (Luke Hammill / The Oregonian)

July 18, 2014, 8:35AM

Celebrate Hillsboro, Northwest String Summit and HART Theatre's "Crazy Old Man" are among this weekend's events. Other options include a hardball classic, concerts, outdoor movies and Internet lessons. Full story »